. The Canadian field-naturalist. 1988 Lanteigne: Status of Banff Longnose Dace 173. Figure 3. Aerial view of the marsh at the inflows of the Cave and Basin Hotsprings, at Bantf National Park, Alberta: 1) Inflow of the Cave Hotspring; 2) Inflow of the Basin Hotspring; 3) Outlet of the marsh to the Bow River. teinperaturewas26°C(NMC71-0218).OnI6May 1981, one specimen (UA 4613) was collected at the Cave Hotspring inflow at a water temperature of °C; five specimens (UA 4615) were also collected there on 17 May 1981, at a water temperature of 24° C. One specimen (U A 4614) was also collected on
. The Canadian field-naturalist. 1988 Lanteigne: Status of Banff Longnose Dace 173. Figure 3. Aerial view of the marsh at the inflows of the Cave and Basin Hotsprings, at Bantf National Park, Alberta: 1) Inflow of the Cave Hotspring; 2) Inflow of the Basin Hotspring; 3) Outlet of the marsh to the Bow River. teinperaturewas26°C(NMC71-0218).OnI6May 1981, one specimen (UA 4613) was collected at the Cave Hotspring inflow at a water temperature of °C; five specimens (UA 4615) were also collected there on 17 May 1981, at a water temperature of 24° C. One specimen (U A 4614) was also collected on 16 May 1981 in a pool at the constriction of the bay opposite Basin Spring, where the water temperature was about 21°C. No specimens were collected in that part of the marsh in September 1981, but two were collected at the outlet of the marsh into the Bow River, just above the beaver dam under the foot bridge, at a water temperature of 17°C. This tends to favor the hypothesis that dace move between the hotspring inflows to the marsh outlet at different times of the year. The Banff Longnose Dace is not known to have existed in the Bow River (Renaud and McAllister 1988). Food: The Longnose Dace is a benthic or bottom-living species and hence its food habits are directly related to bottom-living organisms. The stomachs of the nine specimens of Rhinichthys cataractae smithi collected in 1981 were empty, except for one water boatman, Ramphocorixa. Kuehn (1949) analyzed one collection of 196 stomachs of Rhinichthys cataractae from southeastern Minnesota taken in June, while Reed (1959) studied the stomachs of 796 Longnose Dace from Pennsylvania taken in September. Gee and Northcote (1963) examined the stomachs of 112 juvenile specimens collected in British Columbia between June and October. In all instances, immature forms of Simuliidae (blackflies), Tendipedidae (midges) and Ephemeroptera (mayflies) made up about 90% of the stomach contents. Gerald (1966) gave information base
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